Ambush at dinner
Without warning Michael reaches out to grapple Christopher as he pours wine. It should have a simple action, Christopher ought to have been taken by surprise and flanked, but it didn't happen that way. He seemed to have some uncanny ability to avoid being flanked or surprised. Further, the little man is inhumanly quick (22 dex.) Instead, he found your feeble grapple attempts an opportunity to fight back. First, he
tosses (1d20+7=16) the wine at Michael, but it misses and simply soaks the wall behind. A few drops of the dark rich wine fall upon Michael's sleeve. Next as Rook reaches for him he
swings (1d20+7=19) a fist and connects with his thigh; the blow
stings (1d2+1=2), but the halfling's little fist does little real harm. (It is leathal damage--he has improved unarmed strike.) Finally, Grond also makes a failing grab for the lithe little man, but he too is foiled by a
blow (1d20+7=25) to the
shin (1d2+1=3)
Then Christopher
tumbles(1d20+18=28) between Grond's legs and goes for the door getting it open and crossing the threshhold. (Should have been 30, I missed a synergy.)
OOC: During the Halfling's tumble you may all choose to take an attack of opportunity. However, unless you have a weapon out, and I don't believe you do, you will be subject to another attack of opportunity from the Halfling. Unless of course you also have improved unarmed strike and assuming he has some attacks of opportunity left.

Am I reading the rules for attacks of opportunity correctly? Even though you are making an attack of opp. it draws one back because you are effectively attacking an armed opponent while unarmed? Anyone disagree with that reading of the rules? His AC for your attacks of opportunity will be 22 for Rook and Michael and 23 for Grond.